/**
 * 强制选项框
 */
var CustomForceCheckBox = CustomCheckBox.extend({
    onEnterTransitionDidFinish: function () {
        CustomCheckBox.prototype.onEnterTransitionDidFinish.call(this);
        this.scheduleUpdate();
    },

    update: function () {
        if (this.isVisible())
            this.changeFocus();
    }
});